5) What is the difference between a werewolf and an animagus?Animagi change into animals of their choices whenever they please, and they learn how to do so through extensive study. Werewolves can only transform into wolf-like creatures at the full moon and they are made when they are bitten by a werewolf.

6) What Unforgivable Curse killed Harry Potter's parents, the Riddle family and -- in "Half-Blood Prince" -- a certain main character?Avada Kedavra